spring的Autowired自动装配注入不了

[Study_of_java]

spring是不是少了什么啊，总是抛异常，autowired自动装配有问题
spring.xml:

	
	<bean id="itemsService" class="ssm.check.service.impl.ItemsServiceImpl" >
	</bean>
</beans>

controller的定义：[code=java]
@Controller
public class ItemsController {
@Autowired
private ItemsService itemsService;

@RequestMapping("/findItemsByName")
public ModelAndView findItemsByName() {
// 商品列表
List<ItemsCustom> itemsList = itemsService.findItemsByName(null);

ModelAndView modelAndView = new ModelAndView();
modelAndView.addObject("itemsList", itemsList);
// 视图
modelAndView.setViewName("WEB-INF/jsp/items/itemsList.jsp");

return modelAndView;
}
}
异常：
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private ssm.check.mapper.ItemsCustomMapper ssm.check.service.impl.ItemsServiceImpl.itemsCustomMapper; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [ssm.check.mapper.ItemsCustomMapper] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

[街头小贩]

贴的异常看是没有匹配的类型。贴一下完整异常栈

[街头小贩]

或参考一下这个项目：https://code.csdn.net/xiaofanku/labdemo/tree/master/src/applicationContext.xml

[Study_of_java]

我是把dao,service,和controller的配置文件分开的，这样是不是影响了自动装配？